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Today, 20:28

Which molecule, when added to a solution, would give the solution the highest ph?

A. HCI

B. H2SO4

C. KOH

D. H2O

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Answers (1)
  1. Today, 23:25
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    The correct answer among the choices given is option A. Hydrochloric acid is a much stronger acid than sulfuric acid given that the concentration both is equal. This can be proved by the pKa of these acids. Hydrochloric acid has a pKa of - 6 while the pKa of sulfuric acid is - 3. The lower the value of the pKa, the stronger the acidity of the substance.
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